Former Tour de France champion Jan Ullrich was taken into custody early Friday in Germany following an alleged altercation with an escort at a Frankfurt hotel, German police told several international media outlets, includingReuters and AFP.

According to a police spokeswoman, a report was filed showing Ullrich to be "under the influence of alcohol and drugs" and evidence that he "physically attacked and injured" an "escort lady" at the Villa Kennedy Hotel.

Ullrich's legal team had not responded to messages left by USA TODAY Sports on Friday.

Ullrich, 44, won the Tour de France in 1997 — the only German to do so — and also claimed gold and silver medals at the 2000 Sydney Olympic Games. He admitted to doping in 2013 after receiving a two-year ban from the sport.

A gendarme (left) sprays tear gas at protesters as other gendarmes remove haystacks from the route during a farmers protest that attempted to block the route during Stage 16 of the Tour de France between Carcassonne and Bagneres-de-Luchon, southwestern France.
The race was halted for several minutes after tear gas was used as protesting farmers attempted to block the route. JEFF PACHOUD, AFP/Getty Images

Poland's Michal Kwiatkowski (left) and Great Britain's Geraint Thomas (third from left), wearing the overall leader's yellow jersey, lead the pack riding down along the Grand'Maison dam and lake during Stage 12 of the Tour de France between Bourg-Saint-Maurice - Les Arcs and l'Alpe d'Huez. JEFF PACHOUD, AFP/Getty Images

The Netherlands' Dylan Groenewegen celebrates as he crosses the finish line ahead of Germany's Andre Greipel (left) and Colombia's Fernando Gaviria to win the eighth stage of the Tour de France. MARCO BERTORELLO, AFP/Getty Images

A race medic check France's Axel Domont shoulder after he was caught in a massive pack fall in the last kilometers of the fourth stage of the Tour de France between La Baule and Sarzeau in western France. AFP Contributor#AFP

Peter Sagan (left) sprints in the last meters ahead of ahead of Italy's Sonny Colbrelli (right) and France's Arnaud Demare to win Stage 2 of the 105th edition of the Tour de France. MARCO BERTORELLO, AFP/Getty Images

Colombia's Fernando Gaviria celebrates as he crosses the finish line ahead of Slovakia's Peter Sagan and Germany's Marcel Kittel to win the first stage of the Tour de France. PHILIPPE LOPEZ, AFP/Getty Images

Spectators wait along the road to watch riders during the first stage of the Tour de France cycling race between Noirmoutier-en-l'ile and Fontenay-le Comte, western France. MARCO BERTORELLO, AFP/Getty Images